Inner Cab Corner – Driver Side – 73-87 Chevy GMC C/K Pickup

1973-1987 Chevrolet & GMC C/K Pickup Driver Side Inner Cab Corner Panel — Squarebody Structural Rust Repair

When restoring a 1973-1987 Chevrolet or GMC C/K Squarebody pickup, the driver side inner cab corner is one of the most critical — and most overlooked — rust repair areas on the entire truck. Hidden behind the outer cab corner and above the floor pan, this structural panel provides essential support to the lower cab structure. Once rust takes hold here, it can compromise the integrity of the surrounding sheet metal and make outer panel repairs far more difficult.

AMD's driver side inner cab corner panel is precision-stamped from heavy-duty 19-gauge steel to exact factory specifications, ensuring a proper fit and factory-style installation every time. Measuring 15¾" H × 7⅜" W, this panel delivers accurate coverage and alignment with the outer cab corner, floor pan, and adjoining structure. The EDP (electro-deposit primer) coating provides immediate corrosion protection and ensures excellent paint adhesion right out of the box.

Why Choose This Inner Cab Corner Panel?

•  Driver side (LH) specific fit — precision-stamped for 1973-1987 Chevy and GMC C/K pickups
•  Heavy-duty 19-gauge steel construction — strong, durable, and built to last
•  Factory-correct dimensions — 15¾" H × 7⅜" W with crisp bends and proper flange detail
•  EDP-coated finish — corrosion-resistant and paint-ready straight out of the box
•  Restores structural integrity behind the outer cab corner and above the floor pan
•  Factory-style installation — stamped to OE specifications for a clean, accurate fit

Why the Inner Cab Corner Matters: Unlike cosmetic outer panels, the inner cab corner is a structural component. It ties the floor pan to the lower cab wall and supports the outer cab corner from behind. Rust here often goes unnoticed until an outer panel is removed — making it a smart addition to any cab corner rust repair job. Replacing the inner and outer cab corners together ensures a complete, solid repair that will stand the test of time.

Installation Tips: Always inspect and address the inner cab corner before or alongside your outer cab corner repair. Confirm alignment with the floor pan and outer panel before welding. The factory-correct flanges and dimensions make fitting straightforward, but take your time to ensure everything is properly aligned before final welding.

This Panel Fits:

•  1973–1987 Chevy C10, C20, C30 Pickup
•  1973–1987 Chevy K10, K20, K30 Pickup
•  1973–1987 GMC C15, C25, C35 Pickup
•  1973–1987 GMC K15, K25, K35 Pickup